本文整理匯總了Java中org.apache.hadoop.hbase.HConstants.FILE_SYSTEM_VERSION屬性的典型用法代碼示例。如果您正苦於以下問題：Java HConstants.FILE_SYSTEM_VERSION屬性的具體用法？Java HConstants.FILE_SYSTEM_VERSION怎麽用？Java HConstants.FILE_SYSTEM_VERSION使用的例子？那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類org.apache.hadoop.hbase.HConstants的用法示例。
在下文中一共展示了HConstants.FILE_SYSTEM_VERSION屬性的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: testVersion
@Test
public void testVersion() throws DeserializationException, IOException {
HBaseTestingUtility htu = new HBaseTestingUtility();
final FileSystem fs = htu.getTestFileSystem();
final Path rootdir = htu.getDataTestDir();
assertNull(FSUtils.getVersion(fs, rootdir));
// Write out old format version file. See if we can read it in and convert.
Path versionFile = new Path(rootdir, HConstants.VERSION_FILE_NAME);
FSDataOutputStream s = fs.create(versionFile);
final String version = HConstants.FILE_SYSTEM_VERSION;
s.writeUTF(version);
s.close();
assertTrue(fs.exists(versionFile));
FileStatus [] status = fs.listStatus(versionFile);
assertNotNull(status);
assertTrue(status.length > 0);
String newVersion = FSUtils.getVersion(fs, rootdir);
assertEquals(version.length(), newVersion.length());
assertEquals(version, newVersion);
// File will have been converted. Exercise the pb format
assertEquals(version, FSUtils.getVersion(fs, rootdir));
FSUtils.checkVersion(fs, rootdir, true);
}
示例2: checkVersion
/**
* Verifies current version of file system
*
* @param fs file system
* @param rootdir root directory of HBase installation
* @param message if true, issues a message on System.out
* @param wait wait interval
* @param retries number of times to retry
*
* @throws IOException e
* @throws DeserializationException
*/
public static void checkVersion(FileSystem fs, Path rootdir,
boolean message, int wait, int retries)
throws IOException, DeserializationException {
String version = getVersion(fs, rootdir);
if (version == null) {
if (!metaRegionExists(fs, rootdir)) {
// rootDir is empty (no version file and no root region)
// just create new version file (HBASE-1195)
setVersion(fs, rootdir, wait, retries);
return;
}
} else if (version.compareTo(HConstants.FILE_SYSTEM_VERSION) == 0) return;
// version is deprecated require migration
// Output on stdout so user sees it in terminal.
String msg = "HBase file layout needs to be upgraded."
+ " You have version " + version
+ " and I want version " + HConstants.FILE_SYSTEM_VERSION
+ ". Consult http://hbase.apache.org/book.html for further information about upgrading HBase."
+ " Is your hbase.rootdir valid? If so, you may need to run "
+ "'hbase hbck -fixVersionFile'.";
if (message) {
System.out.println("WARNING! " + msg);
}
throw new FileSystemVersionException(msg);
}